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zld: stubs can also be part of unsigned relocs

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This commit is contained in:
Jakub Konka 2021-06-15 07:51:55 +02:00
parent db08d4c3d6
commit 2034ca82b4
1 changed files with 7 additions and 13 deletions
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20
src/link/MachO/Zld.zig
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@ -1891,7 +1891,6 @@ fn resolveStubsAndGotEntries(self: *Zld) !void {
const relocs = sect.relocs orelse continue;
for (relocs) |rel| {
switch (rel.@"type") {
.unsigned => continue,
.got_page, .got_page_off, .got_load, .got, .pointer_to_got => {
const sym = rel.target.symbol.getTopmostAlias();
if (sym.got_index != null) continue;
@ -2025,12 +2024,9 @@ fn resolveRelocsAndWriteSections(self: *Zld) !void {
const got = dc_seg.sections.items[self.got_section_index.?];
const final = rel.target.symbol.getTopmostAlias();
const got_index = final.got_index orelse {
// TODO remove this when we can link against TAPI files.
log.err("undefined reference to symbol '{s}'", .{final.name});
log.err(" | referenced in {s}", .{
rel.target.symbol.cast(Symbol.Unresolved).?.file.name.?,
});
return error.UndefinedSymbolReference;
log.err("expected GOT index relocating symbol '{s}'", .{final.name});
log.err("this is an internal linker error", .{});
return error.FailedToResolveRelocationTarget;
};
args.target_addr = got.addr + got_index * @sizeOf(u64);
},
@ -2099,16 +2095,14 @@ fn relocTargetAddr(self: *Zld, object: *const Object, target: reloc.Relocation.T
const segment = self.load_commands.items[self.text_segment_cmd_index.?].Segment;
const stubs = segment.sections.items[self.stubs_section_index.?];
const stubs_index = proxy.base.stubs_index orelse {
// TODO remove this when we can link against TAPI files.
log.err("undefined reference to symbol '{s}'", .{final.name});
log.err(" | referenced in {s}", .{
sym.cast(Symbol.Unresolved).?.file.name.?,
});
return error.UndefinedSymbolReference;
log.err("expected stubs index when relocating symbol '{s}'", .{final.name});
log.err("this is an internal linker error", .{});
return error.FailedToResolveRelocationTarget;
};
break :blk stubs.addr + stubs_index * stubs.reserved2;
} else {
log.err("failed to resolve symbol '{s}' as a relocation target", .{sym.name});
log.err("this is an internal linker error", .{});
return error.FailedToResolveRelocationTarget;
}
},